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Optical Components, Detectors, and Displays

Generation of a variable-diameter collimated hollow laser beam using metal axicon mirrors

[+] Author Affiliations
Sanjiv K. Tiwari

Raja Ramanna Centre for Advanced Technology, Laser Physics Applications Division, Indore 452013, India

Satya R. Mishra

Raja Ramanna Centre for Advanced Technology, Laser Physics Applications Division, Indore 452013, India

Surjya P. Ram

Raja Ramanna Centre for Advanced Technology, Laser Physics Applications Division, Indore 452013, India

Opt. Eng. 50(1), 014001 (January 19, 2011). doi:10.1117/1.3530080
History: Received June 15, 2010; Revised November 17, 2010; Accepted November 23, 2010; Published January 19, 2011
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We demonstrate the generation of a collimated hollow beam of variable diameter using a pair of convex and concave metal axicon mirrors. Using these homemade inexpensive convex and concave metal axicon mirrors of equal cone angle, we have generated a good quality hollow beam with high conversion efficiency (∼76%) from a Gaussian input beam. The focusing of the generated collimated hollow beam has been compared with that of a diverging hollow beam.

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© 2011 Society of Photo-Optical Instrumentation Engineers (SPIE)

Topics

Axicons ; Lasers ; Metals ; Mirrors

Citation

Sanjiv K. Tiwari ; Satya R. Mishra and Surjya P. Ram
"Generation of a variable-diameter collimated hollow laser beam using metal axicon mirrors", Opt. Eng. 50(1), 014001 (January 19, 2011). ; http://dx.doi.org/10.1117/1.3530080


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